Djoos made his Elitserien (now the Swedish Hockey League) debut, playing one game with Brynäs IF during the 2011–12 season, and by the 2013–14 season, at the age of 19, he had developed into a regular SHL player for Brynäs.[1]

He signed a three-year, entry-level contract with the Capitals in May 2014.[2]